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Impact of Distributed Generation on Voltage Profile in Deregulated Distribution Systems. By: Walid El-Khattam University of Waterloo, Canada E-mail: waselkha@engmail.uwaterloo.ca. Goals of this Paper :.
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Impact of Distributed Generation on Voltage Profile in Deregulated Distribution Systems By: Walid El-Khattam University of Waterloo, Canada E-mail: waselkha@engmail.uwaterloo.ca
Goals of this Paper: • Describe The Benefits of Implementing Distributed Generation (DG) in The Distribution Network as a Source of Active Power. • Discuss an EMTDC Simulation Case to Emphasize The Benefits of DG on: a) Improving The Network Voltage Profile. b) Reducing The Network Power Loss. c) Reducing The System Components Capacities.
Distributed Generation (DG): • Types: * Fuel Cell (FC) * Micro-Turbines (MT) * Renewable Energy: - Photovoltaic (PV) - Wind Turbines - Storage Energy (Batteries, Flywheels)
Gas Turbine Fuel Cell Micro Turbine Gas Turbine PV Flywheel Batteries Fuel Cell S Tr. S Tr. Main Centralized Generation Plant Transmission System TL TL DSS DSS DSS DSS Commercial Load Industrial Load Distribution System Residential Loads Distribution Network Is No More Vertically Operated
Describe Briefly The Benefits of DG: 1) Economic Point of View: a) Save world’s fuels reservoirs b) Save T&D Expansions Costs c) Increase the electric power equipment lifetime d) Can Be Installed incrementally e) Provide Combined Heat and Power (CHP) f) Not Restricted by Geographically Limitations g) Reduce the wholesale power price (Location Margin Pricing LMP)
Describe Briefly The Benefits of DG: 2) Operation Point of View: a)Positive Impact on Distribution Network’s Voltage profile b) Reduce System’s Power Losses c) Satisfy the Thermal Constraints of T&D feeders d) Help for “Peak Load Shaving” e) Maintain System’s Continuity, Stability and Reliability f) Provide Local Reliability (in case of emergency and main source’s outages as standby generation) g) Maintain System’s Security and reinforce the Critical Electric Power Infrastructure (Small Islanding) h) Positive Impact on Environmental and eliminate/Reduce emissions
An EMTDC Simulation Case Study: The Distribution Network Under Study Lat2 L7 L8 MF L2 L3 Distribution Substation L4 L5 L6 Lat1 Lat3 L9 L11 L12 L10 L13
An EMTDC Simulation Case Study: System Voltage Profile Without and With DG at L13
An EMTDC Simulation Case Study:System Voltage Profile With DG at Different Locations
An EMTDC Simulation Case Study:System Power Loss Without and With DG at L13
An EMTDC Simulation Case Study:System Power Loss With DG at Different Locations
An EMTDC Simulation Case Study:Different System Operating Cases:
An EMTDC Simulation Case Study: Sys C @L11 DG L10 DG L11 DG L12 DG L13 DG L5 DG L6 Sys C @L11 DG L10 DG L11 DG L12 DG L13 DG L5 DG L6
An EMTDC Simulation Case Study:Different System Operating Cases to Study System Components Capacities:
An EMTDC Simulation Case Study: Sys. DG@L11 DG@L6 DG@L11 DG@L12 DG@L13
Results of an EMTDC Simulation Case Study: So The Best Point of DG Connection Is Either L11 Or L12
Conclusions: • DG has positive impact on improving the distribution system voltage profile. • DG can reduce the electric distribution system losses. • DG is a new promising planning approach. • DG as a “Green Electricity” has numerous environmental benefits.